Electron Microscope Study of the Crystal Structure of the Martensite in a Copper-Aluminium Alloy

1963 ◽  
Vol 2 (8) ◽  
pp. 478-486 ◽  
Author(s):  
Zenji Nishiyama ◽  
Setsuo Kajiwara
Keyword(s):  
Crystal Structure ◽  
Electron Microscope ◽  
Aluminium Alloy ◽  
Microscope Study ◽  
Electron Microscope Study

Interface Related Strength Phenomena in Two-Phase Titanium Aluminides

1999 ◽  
Vol 586 ◽  
Author(s):  
U. Christoph ◽  
M. Oehring ◽  
F. Appel
Keyword(s):  
Crystal Structure ◽  
Electron Microscope ◽  
Microscope Study ◽  
Lamellar Structure ◽  
Electron Microscope Study ◽  
Titanium Aluminides ◽  
Intermetallic Phases ◽  
Dislocation Loops ◽  
Two Phase ◽  
Interfacial Dislocations

ABSTRACTPhase equilibria and transformations in near-equiatomic titanium aluminides lead to the formation of a lamellar structure comprising of the intermetallic phases α2(Ti3Al) and γ(TiAl). Due to the differences in lattice parameters and crystal structure, coherency stresses and mismatch structures occur at various types of semicoherent interfaces present in the material. The present paper reports an electron microscope study of the atomic structure of the interfaces. The residual coherency stresses present at the interfaces were determined by analysing the curvature of dislocation loops which were emitted from the network of interfacial dislocations. The implication of these stresses on creep will be discussed.

Ultrastructure of Plant Leaf Tissue Infected with Mite-Borne Viral-Like Pathogens

1970 ◽  
Vol 28 ◽  
pp. 178-179 ◽  
Author(s):  
O. E. Bradfute ◽  
R. E. Whitmoyer ◽  
L. R. Nault
Keyword(s):  
Triticum Aestivum ◽  
Zea Mays ◽  
Electron Microscope ◽  
Hordeum Vulgare ◽  
Microscope Study ◽  
Electron Microscope Study ◽  
Leaf Tissue ◽  
Leaf Ultrastructure ◽  
Double Membrane ◽  
Aceria Tulipae

A pathogen transmitted by the eriophyid mite, Aceria tulipae, infects a number of Gramineae producing symptoms similar to wheat spot mosaic virus (1). An electron microscope study of leaf ultrastructure from systemically infected Zea mays, Hordeum vulgare, and Triticum aestivum showed the presence of ovoid, double membrane bodies (0.1 - 0.2 microns) in the cytoplasm of parenchyma, phloem and epidermis cells (Fig. 1 ).

Electron microscope study of the microgranules in human vaginal epithelium

1978 ◽  
Vol 36 (2) ◽  
pp. 568-569
Author(s):  
A. Campos ◽  
J. Vilches ◽  
J. Gomez
Keyword(s):  
Electron Microscope ◽  
Microscope Study ◽  
Intercellular Space ◽  
Electron Microscope Study ◽  
Vaginal Epithelium ◽  
Vaginal Mucosa ◽  
Secretory Phase ◽  
Cervical Epithelium ◽  
Keratinized Epithelium ◽  
Fertile Women

Microgranules have been described with different names in keratinized and in nonkeratinized epithelium. In keratinized epithelium it seems clear that the microgranules are lamellated bodies bounded by a membrane which empty their contents into the intercellular space. Their existence in nonkeratinized epithelium is more debatable. Until now the so-called microgranules have been described in nonkeratinized bucal, lingual and cervical epithelium. In the present work we describe the morphology and nature of such structures in human vaginal epithelium.Biopsies from the midlevel of the vaginal mucosa were taken from voluntary fertile women. The specimens were divided into three groups with four vaginal specimens. The first group was obtained in the folicular phase; those of the second in the postovulatory phase and, finally, the last group corresponded to the secretory phase.

Structure of Fibrinogen and its Derivatives: An Electron Microscope Study

1979 ◽  
Vol 41 (04) ◽  
pp. 655-661 ◽  
Author(s):  
L Tranqui ◽  
M H Prandini ◽  
M Suscillon
Keyword(s):  
Electron Microscope ◽  
Microscope Study ◽  
Electron Microscope Study

Electron Microscope Study on the Arterio-Venous Anastomoses and the Glomus Tumors

1980 ◽  
Vol 42 (2) ◽  
pp. 255-268 ◽  
Author(s):  
Shuhei IMAYAMA ◽  
Hiromu KOHDA ◽  
Harukuni URABE
Keyword(s):  
Electron Microscope ◽  
Microscope Study ◽  
Electron Microscope Study ◽  
Glomus Tumors
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